package cn.tedu._04interceptor.base.interceptors;

import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Slf4j
public class MyInterceptor implements HandlerInterceptor {
    /**
     * 拦截请求:在请求处理之前进行调用（Controller方法调用之前）
     * @param request current HTTP request
     * @param response current HTTP response
     * @param handler chosen handler to execute, for type and/or instance evaluation
     * @return true:请求可以继续往下处理，false:请求被拦截，不能往下处理了
     * @throws Exception
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        log.debug("1.第一个拦截器preHandle方法执行");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        log.debug("2.第一个拦截器postHandle方法执行");
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        log.debug("3.第一个拦截器afterCompletion方法执行");
    }
}
